SDS Volume (1066)

Volume 38. Hydrocarbons in Water and Seawater, Part II, p None

Original Measurements

Brown, R. L.; Wasik, S. P.; J. Res. Natl. Bur. Stan. 1974, 78A, 453-60.

Variables:

Room Temp: 4.5 - 20.1 °C

Prepared by:

G.T. Hefter

Method/Apparatus/Procedure:

Solubilities were calculated from partition coefficient measurements for the hydrocarbon between an aqueous solution and its vapor using headspace chromatography. The apparatus and the method of obtaining the partition coefficents are described in detail in the paper. Basically, the hydrocarbon was introduced as a vapor (to avoid emulsification) into a glass equilibration cell containing about 45 mL of water. The vapor was subsequently analysed by gas chromatography using He as the carrier. Possible sources of error are discussed in detail although the source of vapor pressure data used to calculate solubilities are not given.

Source and Purity of Materials:
  1. 99.99 mole% purity; source and methods of purification not specified.
  2. distilled.
Estimated Errors:

Ambient temperature: ±0.01°C
Mass concentration (m/v) (1): See Table above.

Components:
  1. Ethylbenzene, $\ce{ C8H10 }$; [100-41-4] NIST WebBook
  2. Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
Solubility of Ethylbenzene in Water
$T$ (°C) MR1 (g1/100 g2) $x_{1}$
4.5 0.0196 3.33 x 10-5
6.3 0.0192 3.26 x 10-5
7.1 0.0186 3.16 x 10-5
9.0 0.0187 3.18 x 10-5
11.8 0.0181 3.07 x 10-5
12.1 0.0183 3.11 x 10-5
15.1 0.0180 3.06 x 10-5
17.9 0.0184 3.12 x 10-5
20.1 0.018 3.1 x 10-5

(a) Errors given as standard deviations

(b) Typographical error in original publication, digit missing in fourth decimal place.

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